CN210515356U - Cash counter with active noise reduction structure - Google Patents
Cash counter with active noise reduction structure Download PDFInfo
- Publication number
- CN210515356U CN210515356U CN201920997140.9U CN201920997140U CN210515356U CN 210515356 U CN210515356 U CN 210515356U CN 201920997140 U CN201920997140 U CN 201920997140U CN 210515356 U CN210515356 U CN 210515356U
- Authority
- CN
- China
- Prior art keywords
- microphone
- cash
- noise
- machine body
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009467 reduction Effects 0.000 title claims description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000000644 propagated effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model relates to a counting currency machine with structure of making an uproar falls in initiative, including the counting currency machine body, set up vibrations sensor on the seismic source mechanism that produces vibrations on the counting currency machine body, set up processing unit, first microphone and speaker on the curb plate inner wall that links to each other with counting currency machine body motor on the counting currency machine body, vibrations sensor, first microphone and speaker all with the processing unit electricity is connected. The utility model discloses, gather the vibration information of counting currency machine body during operation through vibrations sensor, monitor the noise information that counting currency machine body during operation sent through the microphone, and will vibration information and noise information transmit for processing unit to supply the processing unit analysis, and through speaker broadcast and noise opposite phase place, the sound wave that the amplitude is the same offset the noise, eliminate the noise of spreading into the most of people's ear with the noise that reduces the counting currency machine side.
Description
Technical Field
The utility model relates to a counting currency machine field, concretely relates to counting currency machine with structure of making an uproar falls in initiative.
Background
The existing cash counter has the defects of high noise, great interference to the environment, influence on the mood of cash counting workers, easy exhaustion and influence on the working efficiency in the working process. The noise of the cash register mainly comes from the sound generated by the friction between the transmission structure of the cash register and the pulley, wherein the noise generated by the working of the transmission structure is the largest, but the cash register is not provided with a silencing device on the market.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a counting currency machine with structure of making an uproar falls in initiative to reduce the noise of counting currency machine, the technical scheme of the utility model as follows:
the utility model provides a counting currency machine with structure of making an uproar falls in initiative, includes the counting currency machine body, sets up the vibrations sensor on the focus mechanism that produces vibrations on the counting currency machine body, sets up processing unit, first microphone and the speaker on the curb plate inner wall that links to each other with counting currency machine body motor on the counting currency machine body, vibrations sensor, first microphone and speaker all with the processing unit electricity is connected.
Further, the seismic source mechanism which generates vibration on the cash register body comprises a motor, a cash feeding shaft, a cash twisting shaft and a cash receiving shaft, wherein at least one vibration sensor is arranged on the motor, the cash feeding shaft, the cash twisting shaft and the cash receiving shaft.
Further, the speaker is disposed in a direction in which the first microphone sound is propagated.
Furthermore, each first microphone and the loudspeaker arranged in the sound propagation direction of the first microphone form a group, and the inner wall of the side plate is provided with a plurality of groups of first microphones and loudspeakers.
Furthermore, a plurality of groups of first microphones and loudspeakers are arranged on the cover, the shell package or the inner wall of the shell.
Further, still be provided with the second microphone on the curb plate outer wall that links to each other with counting currency machine body motor on the counting currency machine body, first microphone with the second microphone is located respectively the both sides of speaker, just first microphone, the second microphone with the collinear arrangement of speaker, the second microphone with the processing unit electricity is connected.
The utility model has the advantages that:
1. because of the structural reason and the heat dissipation need of the cash register, it is difficult to form a closed space, and the operator generally sits at the side of the cash register, the utility model collects the vibration information of the cash register body during working through the vibration sensor, monitors the noise information sent by the cash register body during working through the microphone, and transmits the vibration information and the noise information to the processing unit for analysis by the processing unit, and plays the sound wave with the same amplitude and opposite phase with the noise through the loudspeaker to offset the noise, so as to reduce the noise at the side of the cash register and eliminate most of the noise transmitted to the ears of the person;
2. the utility model actively reduces noise from the original source of noise, and offsets noise from the sound source;
3. the utility model can combine the vibration signal and the noise signal to carry out noise analysis, the obtained result is closer to the reality, and the noise reduction effect is better;
4. the utility model discloses simple structure, with low costs.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is an internal structure diagram of a banknote counter with an active noise reduction structure according to an embodiment of the present invention;
fig. 2 is a schematic view of a side plate of a banknote counter with an active noise reduction structure according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a banknote counter with an active noise reduction structure according to an embodiment of the present invention.
Description of reference numerals: 1. the device comprises a side plate, 2, a motor, 3, a money sending shaft, 4, a money twisting shaft, 5, a money receiving shaft, 6, a vibration sensor, 7, a first microphone, 8, a loudspeaker, 9, a processing unit, 10 and a second microphone.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the embodiment of the utility model provides a counting currency machine with structure of making an uproar falls in initiative, including the counting currency machine body, set up vibrations sensor 6 on the seismic source mechanism that produces vibrations on the counting currency machine body, set up processing unit 9, first microphone 7 and speaker 8 on the curb plate 1 that links to each other with counting currency machine body motor 2 on the counting currency machine body, vibrations sensor 6, first microphone 7 and speaker 8 all with processing unit 9 electricity is connected.
In the above embodiment, the vibration sensor 6 is used for collecting vibration information of the seismic source mechanism when the banknote counting machine body works, the microphone is used for monitoring noise information sent by the banknote counting machine body when the banknote counting machine body works, the vibration information and the noise information are transmitted to the processing unit 9 to be analyzed by the processing unit 9, the processing unit 9 is used for performing real-time operation by combining the vibration information and the noise information to analyze the frequency of sound waves, and then the sound waves (namely noise elimination signals) which are opposite to the noise phase and have the same amplitude are played through the loudspeaker 8 to offset the noise, so that the noise transmitted to the side of the banknote counting machine is reduced to eliminate most of the noise transmitted to human ears.
Wherein, the vibration signal comprises displacement magnitude, direction, vibration frequency information and the like of vibration.
Wherein the processing unit 9 may use an existing processing module capable of performing processing calculation through vibration information and noise information to generate a noise cancellation signal, such as an existing processing system based on an ADSP-BF533 processor.
Preferably, the seismic source mechanism for generating vibration on the cash register body comprises a motor 2, a cash feeding shaft 3, a cash twisting shaft and a cash receiving shaft 5, and at least one vibration sensor 6 is arranged on each of the motor 2, the cash feeding shaft 3, the cash twisting shaft 4 and the cash receiving shaft 5.
Because the drive mechanism who produces vibrations on the counting currency machine body mainly includes motor 2, send paper money axle 3, twist money axle and connect paper money axle 5, all be provided with shock sensor 6 on motor 2, send paper money axle 3, twist money axle 4 and connect paper money axle 5.
Preferably, the loudspeaker 8 is arranged in the direction of sound propagation of the first microphone 7, so that the loudspeaker 8 is arranged right opposite to the sound source direction, and the noise reduction signal generated by the loudspeaker 8 is right at the intersection of the noise signal, namely, the peak and the trough, thereby better realizing the cancellation of the noise.
Preferably, each first microphone 7 and the loudspeaker 8 arranged in the sound propagation direction of the first microphone 7 are in one group, and the inner wall of the side plate is provided with multiple groups of first microphones 7 and loudspeakers 8.
Preferably, a plurality of sets of first microphones 7 and loudspeakers 8 are also arranged on the inner wall of the cover, the housing envelope or the housing.
In the above-mentioned embodiment, through set up the first microphone 7 of multiunit and speaker 8 on curb plate inner wall, realize better noise monitoring and noise reduction, in addition the utility model discloses also can set up the first microphone 7 of multiunit and speaker 8 on cover, shell parcel or shell inner wall.
Preferably, a second microphone 10 is further arranged on the outer wall of a side plate, connected with a motor of the cash register body, the first microphone 7 and the second microphone 10 are respectively located on two sides of the loudspeaker 8, the first microphone 7, the second microphone 10 and the loudspeaker 8 are arranged in a collinear manner, and the second microphone 10 is electrically connected with the processing unit.
In the above embodiment, the second microphone is configured to receive the sound emitted from the banknote counter by the residual sound caused by the superposition of the sound from the main sound source and the sound from the speaker, and the processing unit may further calculate and control the sound wave signal emitted by the speaker in combination with the sound received by the first microphone and the sound received by the second microphone.
In addition, a plurality of second microphones are provided based on the case of a plurality of sets of the first microphone 7 and the speaker 8, each set of the first microphone 7 and the speaker 8 including one second microphone.
It should be noted that, the claimed solution of the present invention is to calculate the corresponding noise cancellation signal through the vibration information and the noise information, and to broadcast the corresponding noise cancellation signal through the speaker, which is the prior art, according to the selection and connection relationship of each hardware device.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The currency counting machine with the active noise reduction structure is characterized by comprising a currency counting machine body, a vibration sensor arranged on a seismic source mechanism generating vibration on the currency counting machine body, a processing unit arranged on the inner wall of a side plate, connected with a motor of the currency counting machine body, a first microphone and a loudspeaker, wherein the vibration sensor, the first microphone and the loudspeaker are all electrically connected with the processing unit.
2. The cash counter with the active noise reduction structure according to claim 1, wherein the seismic source mechanism for generating vibration on the cash counter body comprises a motor, a cash feeding shaft, a cash twisting shaft and a cash receiving shaft, and at least one vibration sensor is arranged on each of the motor, the cash feeding shaft, the cash twisting shaft and the cash receiving shaft.
3. The bill counter with an active noise reduction structure according to claim 1, wherein the speaker is disposed in a direction in which the first microphone sound is propagated.
4. The cash counter with an active noise reduction structure as claimed in claim 3, wherein each first microphone is combined with a speaker arranged in the sound propagation direction of the first microphone, and a plurality of groups of first microphones and speakers are arranged on the inner wall of the side plate.
5. The cash counter with an active noise reduction structure according to claim 4, wherein a plurality of groups of first microphones and speakers are further arranged on the cover, the shell wrap or the inner wall of the shell.
6. The cash counter with the active noise reduction structure according to claim 1, wherein a second microphone is further arranged on an outer wall of a side plate of the cash counter body connected with a motor of the cash counter body, the first microphone and the second microphone are respectively located on two sides of the loudspeaker, the first microphone, the second microphone and the loudspeaker are arranged in a collinear manner, and the second microphone is electrically connected with the processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997140.9U CN210515356U (en) | 2019-06-28 | 2019-06-28 | Cash counter with active noise reduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920997140.9U CN210515356U (en) | 2019-06-28 | 2019-06-28 | Cash counter with active noise reduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210515356U true CN210515356U (en) | 2020-05-12 |
Family
ID=70580533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920997140.9U Active CN210515356U (en) | 2019-06-28 | 2019-06-28 | Cash counter with active noise reduction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210515356U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113240064A (en) * | 2021-05-28 | 2021-08-10 | 浙江光融电子有限公司 | Cash-out system linkage device of cash register |
| CN115132161A (en) * | 2022-05-27 | 2022-09-30 | 歌尔股份有限公司 | Noise reduction method, head-mounted display device, and computer-readable storage medium |
-
2019
- 2019-06-28 CN CN201920997140.9U patent/CN210515356U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113240064A (en) * | 2021-05-28 | 2021-08-10 | 浙江光融电子有限公司 | Cash-out system linkage device of cash register |
| CN115132161A (en) * | 2022-05-27 | 2022-09-30 | 歌尔股份有限公司 | Noise reduction method, head-mounted display device, and computer-readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210515356U (en) | Cash counter with active noise reduction structure | |
| EP3311588B1 (en) | Noise cancellation system, headset and electronic device | |
| US7466838B1 (en) | Electroacoustic devices with noise-reducing capability | |
| US9613614B2 (en) | Noise-reducing headphone | |
| EP2680608A1 (en) | Communication headset speech enhancement method and device, and noise reduction communication headset | |
| CN109863757A (en) | It is improved using the hearing aid of active noise reduction | |
| JP2019092129A (en) | Digital electroacoustic transducer | |
| WO2014012497A1 (en) | Test apparatus and method for noise reduction earphone | |
| CN110972029B (en) | Directional sound production device and electronic equipment | |
| CN209234033U (en) | A kind of active noise reduction earphone | |
| CN106454574A (en) | Earplug type earphone microphone module | |
| CN105336318A (en) | Initiative denoising silence device for large generator unit | |
| US11405734B1 (en) | Hearing aid devices | |
| CN107343235A (en) | It is a kind of can plug earphone cord active noise reduction earphone | |
| CN207560274U (en) | Noise cancelling headphone | |
| CN109104657A (en) | Multi-loudspeaker active noise reduction earphone | |
| CN109309893A (en) | A kind of loudspeaker | |
| CN207150781U (en) | A kind of active noise reduction earphone of pluggable earphone line | |
| US20190164532A1 (en) | Digital electroacoustic transducer apparatus | |
| CN114979928A (en) | Testing method, device and system of bone conduction earphone and storage medium | |
| CN212486758U (en) | Earphone set | |
| CN111083618B (en) | Sound generating device module and electronic product | |
| EP4021008B1 (en) | Voice signal processing method and device | |
| CN208675471U (en) | A kind of multi-loudspeaker active noise reduction earphone | |
| CN212720025U (en) | Active noise reduction window type air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430072 No. 006, 20th floor, business project (China Pharmaceutical Technology Trading Market), No. 1, xiyaojian Road, north of Gaoxin Avenue and Heying Road, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee after: Wuhan Zhuomu Technology Co.,Ltd. Country or region after: China Address before: A2-32-05, 2nd floor, Guannan science and Technology Industrial Park, Guandong street, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee before: WUHAN ZMVISION TECHNOLOGY Co.,Ltd. Country or region before: China |